Question

What is the principle of standard deviation for grouped data?​

Answer 1

Answer:

Standard Deviation.

For Ungrouped DataFor Grouped DataS=√∑(X–¯X)2nS=√∑f(X–¯X)2∑f

step-by-step explanation

The standard deviation is defined as the positive square root of the mean of the square deviations taken from the arithmetic mean of the data. The standard deviation is in the same units as the units of the original observations